Boosting hydrogen evolution reaction on few-layer graphdiyne by sp-N and B co-doping

Hydrogen evolution reaction (HER) catalysts based on noble metals traditionally suffered from high cost, low activity, and poor stability. Metal-free originating heteroatom-doped carbon materials have been proposed to address these problems, in which the doping configurations electronic structures are critical for modulating electrocatalytic activity. Herein, we reported a sequential approach co-doping of B N atoms into graphdiyne (GDY). We noticed that heteroatoms strongly related process, subsequent HER test shows certain sp-N can decrease overpotential, further introduction continuously enhance current density owing synergistic effect chemical couplings proton adsorption/reduction kinetics. This work provides deeper understanding developing dual heteroatom doped non-metallic catalysts.